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2017 Word of the Year

contact process

noun, Chemistry.
1.
a catalytic method for producing sulfuric acid from sulfur dioxide and oxygen.
Origin of contact process
1900-1905
First recorded in 1900-05
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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Examples from the Web for contact process
Historical Examples
  • Pure concentrated acid can be made best by the contact process, while the chamber process is cheaper for the dilute impure acid.

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Word Value for contact

11
14
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